Showers, K. B. (2005). Imperial gullies: Soil erosion and conservation in Lesotho. Ohio University Press.
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Chicago-čujuhus (17. p.)
Showers, Kate Barger. Imperial Gullies: Soil Erosion and Conservation in Lesotho. Athens: Ohio University Press, 2005.
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MLA-čujuhus (9. p.)
Showers, Kate Barger. Imperial Gullies: Soil Erosion and Conservation in Lesotho. Ohio University Press, 2005.
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